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Diffstat (limited to 'lib/Sema/SemaTemplateInstantiateDecl.cpp')
-rw-r--r--lib/Sema/SemaTemplateInstantiateDecl.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Sema/SemaTemplateInstantiateDecl.cpp b/lib/Sema/SemaTemplateInstantiateDecl.cpp
index 55462ff09b..15afd1f6c9 100644
--- a/lib/Sema/SemaTemplateInstantiateDecl.cpp
+++ b/lib/Sema/SemaTemplateInstantiateDecl.cpp
@@ -3397,7 +3397,8 @@ NamedDecl *Sema::FindInstantiatedDecl(SourceLocation Loc, NamedDecl *D,
if (Decl *FD = Found->dyn_cast<Decl *>())
return cast<NamedDecl>(FD);
- unsigned PackIdx = ArgumentPackSubstitutionIndex;
+ int PackIdx = ArgumentPackSubstitutionIndex;
+ assert(PackIdx != -1 && "found declaration pack but not pack expanding");
return cast<NamedDecl>((*Found->get<DeclArgumentPack *>())[PackIdx]);
}